PrimeGrid's Birthday/Summer solstice challenge starts in about 5 hours. This 24h challenge is a GPU/CPU task challenge with the project being Cullen/Woodall Prime search (sieve). Hope those that can come aboard do so for the challenge.

Summer solstice challenge Ars ended up in 38th place. Much lower than in the last challenge's 16th place. What happened have we lost that many crunchers or are the all off working on Bitcoin mining and no longer doing BOINC and other DC projects? I ended up in 388th place up from 421 in the last one.

Summer solstice challenge Ars ended up in 38th place. Much lower than in the last challenge's 16th place. What happened have we lost that many crunchers or are the all off working on Bitcoin mining and no longer doing BOINC and other DC projects? I ended up in 388th place up from 421 in the last one.

A lot of us that did challenges are working on Vault projects. We were losing massive ground during the challenges as the 2nd place team pretty much ignores them and grabs the chance to post big gains. Seems we just don't have the ArsPower to do everything anymore

Okay, PrimeGrid is pissing me off. I configured one machine to crunch it, using only Nvidia GPU for PPS Sieve. I go back to project to check settings later (mainlu because I am still getting CPU WUs), and it tells me it has set CPU for PPS LLR and Sophier Germain LLR. What the?!? So I edit settings and uncheck the two, then save. They are still there. Repeat 3 more times, to no avail.

So I uncheck CPU usage, period. And they still are selected, despite CPU being unchecked. x1000

Okay, PrimeGrid is pissing me off. I configured one machine to crunch it, using only Nvidia GPU for PPS Sieve. I go back to project to check settings later (mainlu because I am still getting CPU WUs), and it tells me it has set CPU for PPS LLR and Sophier Germain LLR. What the?!? So I edit settings and uncheck the two, then save. They are still there. Repeat 3 more times, to no avail.

So I uncheck CPU usage, period. And they still are selected, despite CPU being unchecked. x1000

Try checking only "Use NVidia GPU" at the top (uncheck "Use CPU"). Also check "Proth Prime Search (LLR)" CPU box in the middle (don't ask why). Check the "Proth Prime Search (Sieve)" CUDA box farther down. Update and see if it works

PrimeGrid is gradually decreasing their credits for PPS Sieve down to most likely around 50% of the previous levels. As we know PPS Sieve has been awarding more credits than just about any project out there. Due to app and range changes the levels are being adjusted downwards. I think we all suspected this was coming. Personally I think it makes sense. For more information see this thread:

PrimeGrid is gradually decreasing their credits for PPS Sieve down to most likely around 50% of the previous levels. As we know PPS Sieve has been awarding more credits than just about any project out there. Due to app and range changes the levels are being adjusted downwards. I think we all suspected this was coming. Personally I think it makes sense. For more information see this thread:

200 years after the conclusion of Alien 3, the company is able to resurrect Ripley (Sigourney Weaver) through the process of cloning and the scientists successfully take the Queen Alien out of her. But, Ripley's DNA gets mixed up with the Queen's and she begins to develop certain alien characteristics. The scientists begin breeding the aliens, but they later escape. Soon the Xeno-morphs are running amok on the ship, which is on course to earth. The Queen then gives birth to a deadly new breed of alien, which could spell disaster for the entire human race. It's up to Ripley and a band of space pirates to stop the ship before it reaches earth.

It's good to be crunching in a challenge again. Don't know how I'm doing it but I'm in 52nd place so far. Anything in the top 100 is a big place finish for me. It will be interesting to see how this turns out.

Next up is The Winter Solstice Challenge running 3 days and starting 19 December 2010 05:30 UTC. This is a GPU project and it's there the vast majority of points will be scored. Here's the introductory thread at PrimeGrid. http://www.primegrid.com/forum_thread.php?id=3812#44436

Hope to have a number of you joining in on this final PrimeGrid Challenge of 2011.

I will be in for the Challange. I will in the morning set no new tasks for all my projects to clear out all my close deadline work. I was offline for 1 week and that put me close to deadlines for several projects and my digout is like 80% compleat with just letting BOINC work it out over the last week. A day with no new work all close deadlines should be gone befor the Challange and I will suspend any work on other projects for the 3 days.

I love BOINC's initial estimates for CPUs if you have never run that project on that machine on CPUs. 232 hours for the initial estimate. I am clicking off an estimated hour every 5 minutes right now. Acourding to a thread on PrimeGrid it should end up taking around 20 hours on my CPUs. My weak GPU is taking several hours per WUs so I need all the help I can get from my CPUs to score any serious points on this challange. Good luck to all of crunchers and here's to hoping we do well! See every one in 3 days.

Trying to figure out why I'm not listed as participating. I'm *always* doing PPS Sieve (although for the challenge I'm doing it exclusively - sorry GPUGrid). What else do I need to do? The site says to work on this project exclusively (ok, I just turned off CW Sieve), but what about CPU projects? The site doesn't even let me opt out of all of them (bug?).

You should not have to do anything to join. I checked FreeDC Stats and you're doing a bunch of PPS_sr2sieve work. I'm wondering, are you still crunching work units you downloaded before the challenge began? I know on my PPS_sr2sieve machine if I don't do anything it has quite a few days worth of work cached all the time.

You should not have to do anything to join. I checked FreeDC Stats and you're doing a bunch of PPS_sr2sieve work. I'm wondering, are you still crunching work units you downloaded before the challenge began? I know on my PPS_sr2sieve machine if I don't do anything it has quite a few days worth of work cached all the time.

I forgot to dump my WUs too and lost the first 8 or 9 hours of challenge points. Should have set an alarm

Me too! Except it was the first ~18 hours. Oh well.

Both of you seem to be catching up fast though. I just looked at the stats and you are way ahead of me and my little dual core with a very slow GPU. I am taking around 28 hours for a long CPU task an almost 7 hours for a long task on GPU. I lucked into one of the older shorty reissues from early in December for my second load of CPU tasks looks like it takes 1/2 the time for aproxamatly 2/3 the credit. I need to get one more for the 3rd set of CPU tasks so I can turn in the 3rd round before the deadline. The short tasks are almost gone and only come around now when a tasks times out from before the 15th of Dec. the I creased the size of WUs to help with result DB size. The started to see issues with DB size around a month ago and this was part of the cure.

To speed up my getting WUs done I have stopped web surfing on my daily machine and only using my iPad for the 3days of the challange. Also no games so am slightly bored.

Ok for my machine I have reached the point where new work for CPUs will no longer finish before deadline. Am still pulling new GPU work and will until 6 hours before the end of the challange. hope everyone's run is going well.

Well I'm done. All WUs that will be done in time are in. My next GPU unit finish over an hour late. My next CPU unit looks to be over 8 hours late. Moving my CPU crunching to the Lattice project. GPU will stay on prime + Collatz for now.EditI was hoping for one more short WU I did not get it for GPU or CPU. oh well

A big Thank You to all the team members that helped out on the PPS Sieve Winter Solstice Challenge. There are some amazing big numbers put up in these challenges. As a team we came in 32nd. Here's how we did individually. My apologies if I missed anyone.

PrimeGrids 2012 Challenge Series kicks off with "The Year of the Dragon Challenge"

Quote:

The Dragon, the mightiest of all the signs, is a creature of myth and legend. In Asia the Dragon is an auspicious creature, a symbol of benevolent power, strength and good luck and capable of great good. 23 January marks the start of the Chinese Year of the Dragon. Let's see if we can channel some of that Dragon energy to find some primes in the start of PrimeGrid's 2012 Challenge Series.

Personal goal note. Grabbed my silver badge in Sophie Germain Prime Search (LLR). Now on to Woodall Prime Search (LLR) for the next badge after a brief detour, in only 4 days, for the Year of the Dragon Challenge.